An aircraft landing gear folding and unfolding hydraulic time sequence control system comprises a folding and unfolding actuating cylinder, an upper lock unlocking actuating cylinder, a lower lock unlocking actuating cylinder, a putting-down pressure supply pipeline and an upper folding pressure supply pipeline, one side of a piston of the folding and unfolding actuating cylinder is provided with a putting-down pressure supply cavity, and the other side of the piston is provided with a folding pressure supply cavity. The cavity wall of a pressure supply cavity of the uplock unlocking actuating cylinder is provided with two hydraulic interfaces, a first hydraulic interface close to the bottom of the pressure supply cavity is communicated with a laying-down pressure supply pipeline, and a second hydraulic interface far away from the bottom of the pressure supply cavity is communicated with a laying-down pressure supply cavity of the folding and unfolding actuating cylinder; the distance between the first hydraulic connector and the second hydraulic connector is the unlocking stroke of the uplock. The cavity wall of the pressure supply cavity of the lower lock unlocking actuating cylinder is also provided with two hydraulic interfaces, the third hydraulic interface close to the bottom of the pressure supply cavity is communicated with the upper folding pressure supply pipeline, and the fourth hydraulic interface far away from the bottom of the pressure supply cavity is communicated with the folding pressure supply cavity of the folding and unfolding actuating cylinder; the distance between the third hydraulic connector and the fourth hydraulic connector is the unlocking stroke of the down lock.
一种飞机起落架收放液压时序控制系统,含有收放作动筒、上位锁开锁作动筒、下位锁开锁作动筒、放下供压管路和收上供压管路,收放作动筒的活塞一侧为放下供压腔,活塞另一侧为收起供压腔,其特征在于,所述的上位锁开锁作动筒的供压腔腔壁上设有两个液压接口,其接近供压腔底部的第一液压接口与放下供压管路连通,其远离供压腔底部的第二液压接口与收放作动筒的放下供压腔连通,第一液压接口与第二液压接口之间的距离为上位锁开锁行程;所述的下位锁开锁作动筒的供压腔腔壁上同样设有两个液压接口,其接近供压腔底部的第三液压接口与收上供压管路连通,其远离供压腔底部的第四液压接口与收放作动筒的收起供压腔连通,第三液压接口与第四液压接口之间的距离为下位锁开锁行程。
Hydraulic time sequence control system and control method for aircraft landing gear folding and unfolding
一种飞机起落架收放液压时序控制系统及控制方法
14.02.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
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